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Finding the Fourth Proportional to 269,806.85, 372,334 and 148,948.30

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Solution

The fourth proportional to 269,806.85, 372,334 and 148,948.30 is: 205,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,806.85 : 372,334 = 148,948.30 : x
  2. Step 2: Convert to fraction form
    269,806.85/372,334 = 148,948.30/x
  3. Step 3: Cross multiply
    269,806.85x = 372,334 × 148,948.30
  4. Step 4: Simplify right side
    269,806.85x = 55,458,516,332.20
  5. Step 5: Solve for x
    x = 55,458,516,332.20/269,806.85
  6. Step 6: Final answer
    x = 205,548.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.